Step stool



FIG. 1 is a top perspective view of a step stool embodying my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a side elevational view thereof.

FIG. 4 is an end elevational view thereof.

FIG. 5 is a sectional view on line 5--5 of FIG. 4.

FIG. 6 is a sectional view on line 6--6 of FIG. 3.

FIG. 7 is an enlarged fragmentary sectional view on line 7--7 of FIG. 3.

FIG. 8 is an enlarged sectional view on line 8--8 of FIG. 3.

The side opposite to that shown in FIG. 3 is a mirror image thereof, and the end opposite to that shown in FIG. 4 is a mirror image thereof. 

The ornamental design for a step stool, as shown and described. 